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APU B-747
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24th Oct 2016, 12:25
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torghabe
Join Date: Apr 2008
Location: by the river
Age: 62
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The question is- for APU start up should I hold Master control switch in ON position 25-30 sec then set to START position, then to ON OR I may set to START immediately, after that release to ON? Is there any technical reason?
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torghabe
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